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Proceedings Paper

Robust estimation of the discrete spectrum of relaxations from multiple-electromagnetic induction responses
Author(s): Mu-Hsin Wei; Waymond R. Scott; James H. McClellan
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Paper Abstract

The EMI response of a target can be accurately modeled by a sum of real exponentials. However, it is difficult to obtain the model parameters from measurements when the number of exponentials is unknown. We have previously proposed estimation methods for the model parameters from a single measurement. In this paper, we propose to increase the estimation accuracy by utilizing the multiple measurements often available for a given target. The property of measurements sharing the same relaxation frequencies is exploited to increase the estimation performance. The proposed method is shown to deliver robust estimation using synthetic, laboratory data, and field data.

Paper Details

Date Published: 10 May 2012
PDF: 9 pages
Proc. SPIE 8357, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVII, 83570A (10 May 2012); doi: 10.1117/12.919608
Show Author Affiliations
Mu-Hsin Wei, Georgia Institute of Technology (United States)
Waymond R. Scott, Georgia Institute of Technology (United States)
James H. McClellan, Georgia Institute of Technology (United States)


Published in SPIE Proceedings Vol. 8357:
Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVII
J. Thomas Broach; John H. Holloway, Editor(s)

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